19258980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24691}}^1$

素因数の和:24716

約数の個数: 48

約数和(自身を含む): 58075584

約数和(自身を除く): 38816604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 24691, 49382, 74073, 98764, 123455, 148146, 246910, 296292, 320983, 370365, 493820, 641966, 740730, 962949, 1283932, 1481460, 1604915, 1925898, 3209830, 3851796, 4814745, 6419660, 9629490, 19258980]

約数ペア:

[(1, 19258980), (2, 9629490), (3, 6419660), (4, 4814745), (5, 3851796), (6, 3209830), (10, 1925898), (12, 1604915), (13, 1481460), (15, 1283932), (20, 962949), (26, 740730), (30, 641966), (39, 493820), (52, 370365), (60, 320983), (65, 296292), (78, 246910), (130, 148146), (156, 123455), (195, 98764), (260, 74073), (390, 49382), (780, 24691)]